Most motorcycle breakdowns in my humble experience have been simple mechanical affairs. (chain, tires, blown shocks) Occasionally you will see a dead battery or some blown fuses.

If someone can offer up some evidence of EFI or computers leaving them stranded in the middle of nowhere I am all ears. I've never in my life had a computer in a car or bike fail on me. It's not like they are using vacuum tubes anymore.

My electronic ignition failed on my scooter.The computer failed on my Buick. These things were mysterious and ate up a lot of time and trouble figuring out. Not the kind of thing you can approach with a tool box.